I. Respiratory: 1. Full-time ventilator support: Reza relies on a mechanical ventilator to breathe entirely for a period of six months. The machine pumps oxygen into his lungs, mimicking the natural process of breathing. 2. Part-time ventilator support: After six months, Reza gradually decreases his reliance on the ventilator. He begins using it for only half of the day, allowing his lungs to strengthen and regain their functional capacity. 3. Part-time oxygen support (with tracheostomy): Once Reza reaches the one-year mark, he no longer requires the ventilator. However, to support his respiratory system, he needs to wear a small portable oxygen device that attaches to his tracheostomy tube. 4. Part-time oxygen support (tracheostomy removed): Two years following the accident, Reza's tracheostomy is finally removed. However, he still needs occasional oxygen supplementation during particularly strenuous activities or when in high-altitude areas. II. Mobility: 1. Full-time bed rest: During the first three months of his recovery, Reza's injuries are so severe that he is confined to bed rest. His body needs time to heal, and he is assisted by medical equipment to prevent bedsores. 2. Assisted wheelchair mobility: After four months, Reza is transferred to a specialized wheelchair that provides better support for his weakened body. He requires assistance, either from medical staff or family members, to move around. 3. Independent wheelchair mobility: Eight months later, Reza gradually gains enough strength to navigate his wheelchair independently. While he might need occasional assistance for more physically demanding tasks, he can steer himself around with ease. 4. Limited assisted walking: After a year and a half, Reza begins engaging in physical therapy, which gradually enables him to take assisted steps with the help of crutches or a walker. 5. Full-time assisted walking: At the two-year mark, Reza's muscles and joints have significantly improved. Although still needing assistance, he can now walk for longer periods with the aid of a cane or the support of another person. 6. Limited unassisted walking: Following rigorous physical therapy sessions for another year, Reza progressively regains strength and balance. He can now walk short distances unassisted, although his stamina and ability to tackle various terrains are limited. III. Gastrointestinal: 1. Tube feeding: Throughout the first six months of his recovery, Reza's nutrition primarily relies on a feeding tube. This ensures he receives adequate nutrients and calories despite his inability to eat solid food. 2. Gradual oral intake: After six months, Reza starts incorporating soft foods and liquids into his diet, under the guidance of a speech therapist and nutritionist. He initially takes small amounts, gradually increasing his oral intake over time. IV. Urinary: 1. Urinary catheterization: At the beginning of his rehabilitation journey, Reza requires a urinary catheter to assist in emptying his bladder. Nurses regularly monitor and manage this aspect of his care. 2. Full-time incontinence products usage: Roughly a year following the accident, Reza no longer needs a catheter but experiences occasional urinary incontinence. He relies on specialized incontinence products as a precautionary measure. 3. Occasional incontinence products usage: After two years, Reza's control over his bladder improves significantly. However, he still occasionally wears incontinence products for added security during strenuous activities or when he knows access to a restroom may be limited.